1975770819 has 64 divisors (see below), whose sum is σ = 3317760000. Its totient is φ = 1151615520.

The previous prime is 1975770809. The next prime is 1975770827. The reversal of 1975770819 is 9180775791.

It is not a de Polignac number, because 1975770819 - 2¹⁷ = 1975639747 is a prime.

It is a super-2 number, since 2×1975770819² = 7807340658423861522, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (1975770809) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 822382 + ... + 824780.

It is an arithmetic number, because the mean of its divisors is an integer number (51840000).

Almost surely, 2^1975770819 is an apocalyptic number.

1975770819 is a deficient number, since it is larger than the sum of its proper divisors (1341989181).

1975770819 is a wasteful number, since it uses less digits than its factorization.

1975770819 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2525 (or 2519 counting only the distinct ones).

The product of its (nonzero) digits is 1111320, while the sum is 54.

The square root of 1975770819 is about 44449.6436318673. The cubic root of 1975770819 is about 1254.8125557207.

The spelling of 1975770819 in words is "one billion, nine hundred seventy-five million, seven hundred seventy thousand, eight hundred nineteen".